Login System with Email OTP Verification & Forgot Password Fix

We are looking for an experienced PHP/Full-Stack Developer to improve our existing authentication system. Requirements: - Implement a secure login system with Email OTP (One-Time Password) verification. - Send OTP to the user's registered email during login. - Validate OTP before granting access to the system. - Fix the existing "Forgot Password" functionality. - Ensure password reset emails are sent correctly and securely. - Improve security and handle edge cases such as expired OTPs and invalid reset links. - Test the complete login and password recovery workflow. Deliverables: - Fully functional login with email OTP verification. - Fixed and tested forgot password feature. - Clean, maintainable code with proper documentation. Please share your relevant experience and estimated timeline for completion.